1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4e3ed01f45eee41f527a1888b307176b279841393b3bed106bfa5e1073a369. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/252d571e-60d6-4e6f-b1a7-4939a14cd771.json and https://artists.proofprofile.net/proofs/artist/252d571e-60d6-4e6f-b1a7-4939a14cd771.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thuille - Dvořák - Telemann - Reicha - Piston - Rimsky-Korsakov - Janáček
Sextet in B-Flat, Op. 6: I. Allegro moderato
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329886ce99f1e10e2e8f8fa09f0048c0f6dbbb0cc3ce8598e6f9a691c87d0cbd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000183.
Sextet in B-Flat, Op. 6: III. Gavotte. Andante, quasi allegretto
Sextet in B-Flat, Op. 6: IV. Finale. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e21a8ceb525ded6d4242142f593c78050633661aff1ece464effb281b991ade. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000185.
Serenade for Wind Instruments in D Minor, Op. 44: I. Moderato, quasi marcia
Serenade for Wind Instruments in D Minor, Op. 44: II. Tempo di minuetto - Trio. Presto
Serenade for Wind Instruments in D Minor, Op. 44: III. Andante con moto
Serenade for Wind Instruments in D Minor, Op. 44: IV. Finale. Allegro molto
Wind Quintet in E-Flat Major, Op. 88, No. 2: I. Lento. Allegro moderato
Wind Quintet in E-Flat Major, Op. 88, No. 2: II. Menuetto. Allegro
Wind Quintet in E-Flat Major, Op. 88, No. 2: III. Poco andante - Grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8290831407efad36965db1dd3e5d39080fdf5b28c4fddcfc4f010d9a1359ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000193.
Wind Quintet in E-Flat Major, Op. 88, No. 2: IV. Finale. Allegretto
Quintet for Wind Instruments: I. Animato
Quintet for Wind Instruments: II. Con tenerezza
Quintet for Wind Instruments: III. Scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ae55fd9f71816d5e85609a4680a74b9be7dc4a03ab5f81e98c981b5bc2cfb6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000197.
Quintet for Wind Instruments: IV. Allegro comodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a2868cc548363edada1bce4e02ec25fc3a38907f41235d1f1138b0bfc4465a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000198.
Sonatine No. 1 in F Major, TrV 288: I. Allegro moderato
Sonatine No. 1 in F Major, TrV 288: II. Romance and Minuet
Sonatine No. 1 in F Major, TrV 288: III. Finale. Allegro molto
Serenade for Winds in E-Flat Major, Op. 7
Suite in B-Flat Major, Op. 4: III. Gavotte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed94fe4aef557653c4188b9e60ca49923654056ef264e90887e404b2bcbbd32f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE72000203.
Quintet in B-Flat Major, Op. 20: I. Allegro con brio
Quintet in B-Flat Major, Op. 20: II. Andante
Quintet in B-Flat Major, Op. 20: III. Andante
Korngold - Beethoven - Schubert - Krenek - Berg - Strauss
Much Ado About Nothing Suite, Op. 11: I. Overture
Much Ado About Nothing Suite, Op. 11: II. Maiden in the Bridal Chamber
Much Ado About Nothing Suite, Op. 11: III. Dogberry and Verges
Much Ado About Nothing Suite, Op. 11: IV. Intermezzo
Much Ado About Nothing Suite, Op. 11: V. Hornpipe
March for Military Music in F Major, WoO 18
March for Military Music in F Major, WoO 19
3 Military Marches, Op. 51, D. 733, No. 3.in E-Flat Major: Allegro moderato
Octet in F Major, D. 803: I. Adagio - Allegro
Franz Schubert: Historical Recordings (1932, 1940)
Octet in F Major, D. 803: III. Allegro vivace
Octet in F Major, D. 803: V. Menuetto: Allegretto
Octet in F Major, D. 803: VI. Andante molto - Allegro
Octet in F Major, D. 803: V. Menuetto. Allegretto